Builder motion for spinning and twister frames



July 21, 1936. F. E. BANFIELD JR BUILDER MOTION FOR SPINNING AND TWISTER FRAMES 2 Sheets-Sheet 1 Filed March 21, 1955 VENTOR.'

y 1936- F. BANFIELD. JR 2,043,590

BUILDER MOTION FOR SI INNING AND TWISTER FRAMES Fil ed March 21, 1955 2 Sheets-Sheet 2 5.; ATTORNEY.

Patented July 21, 1936 nuns!) STATES PATENT OFFIQE BUILDER MOTION FOR SPINNING AND TWISTER FRAMES Application March 21, 1935, Serial No. 12,119

Claims.

templated that the invention may also be used in other machines.

The type of builder used .almost universally in frames of the character above mentioned is that known as the Scaife motion. It has proved very satisfactory so long as the traverse of the spindle rail is not too great. However, when it is desired to increase substantially the height of the yarn bodies being produced in the spinning or twister frame, then serious difficulties with this type of builder motion are encountered. Due to limitations inherent in the construction of this motion, the diameter of the builder cam that can be used is very limited. Also, even if it were possible to use a larger cam and thus to produce a greater throw or amplitude of movement of the builder arm, the result would be to cause cramping and breakage of the parts. The present invention aims to improve these builder motions and the mechanisms operated by them with a view to overcoming these difficulties.

The nature of the invention will be readily understood from the following description when read in connection with the accompanying drawings, and the novel features will be particularly pointed out in the appended claims.

In the drawings,

Figure 1 is a side elevation, with parts broken away, illustrating those portions of a builder motion with which the present invention is more especially concerned, and showing the application thereto of mechanism embodying this invention;

Fig. 2 is a plan View of the builder motion and associated parts shown in Fig. 1; and

Fig 3 is a vertical, sectional view on the line 3-3, Fig. 2.

Referring first to Fig. 1, a typical Scaife builder motion is there shown, including the builder cam 2, the intermediate lever 3 carrying a roll 4 on which the cam acts, and the builder arm 5 with the adjustable roll 6 mounted thereon through which the movement of the lever 3 is transmitted to the arm. This mechanism also includes the usual screw threaded shaft 1, and the slide 8 connected therewith and which forms the terminal member of this motion. That is, the various movements of the builder motion ultimately are transmitted to this slide 8 to give it reciprocating movements of varying degrees which are to be transmitted to the spindle rail, ring rail, or the like, in accordance with the nature of the yarn body being built.

The present invention resides more especially in the connections between the builder motion and the spindle rail or ring rail, .as the case may 5 be, one being the equivalent of the other, so far as this invention is concerned. This rail is indicated in Fig. 1 at it and is mounted in the usual manner to reciprocate in a vertical path, the rail 7 being supported by a series of lifter rods, one of 10 which is shown at l2. Secured to the lower end of each rod I2 is a chain, such as that illustrated at 3, guided over fixed pulleys l4 and I5 and fastened at its opposite end to the horizontal re-' ciprocating traverse bar I 6. In the usual arrangement this bar is connected directly to the slide 8 so thatthe traversing movements of the spindle rail it are synchronous with, and of the same amplitude as, the longitudinal reciprocating movements of the traverse bar I6. According to the present invention, however, means is interposed between the traverse bar and the slide 8 for not only transmitting movement of the latter to the former, but also for multiplying the movement of the slide and thereby giving the 5 bar l6 and rail It reciprocating movements of substantially greater amplitude than that of the slide.

Referring again to Fig. 1, it will be seen that a pulley or sheave H is mounted on the slide 8 and that a chain I8 runs over this pulley, one end of the chain being secured to the end of the traverse bar by a lug or bracket 20, while the opposite end of the chain is secured to another bracket 2| that is bolted to the frame piece 22. It will be 5. evident that with this arrangement a movement of the slide 8 toward the left, Fig. 1, for any given distance, say an inch, will produce a corresponding movement of the traverse bar l6 in the same direction but of twice the amplitude, or, in this particular instance, of two inches. This movement will be transmitted, unchanged as to amplitude, to the spindle rail l0. When the slide 8 moves toward the right, the traverse bar 16 will be made to follow it, because the entire weight of the ring rail, and the parts mounted on it, is transmitted to it through the chains I 3, but its rate of travel will be twice that of the slide.

This arrangement, therefore, produces the desired increase in traverse of the spindle rail without making any change in the design of the builder motion itself, other than in some of the details of the slide. As above stated, this member is designed to support the pulley l1. Preferably, also, it acts as a guide for the adjacent end V .of the traverse bar [6. As shown in the drawings,

and more especially in Figs. 1 and 3, the'edge of the traverse bar bears against the side of the slide 8, and the bracket 29, which is secured rigidly to the bar, runs in a groove 24 formed in the side of the slide. Additional guiding functions are periormed by pulleys i5 and I ll, each of these pulleys having peripheral marginal faces to bear on the topand bottom, respectively, of

-the'ba r, and also being provided with flanges a and b at their outer ends to overlie the edgeof the bar opposite to the slide. These flanges cooperate with the slide to position the bar laterally, while the peripheral surface of the pulleys cooperate with the groove 26 to guideit in a horizontal plane. The central portion of each pulley is grooved deeply to receive the chain, sothat the desired clearance is provided between the surface of the chain and the bar is. At other points in the'machine the bar may be supported in the usual manner. The arrangement above described, however, together withthe location of the two pulleys in' the same vertical. plane, brings the pull of the 'chains on the bar substantially in line with'each other; It will be observed that the slide is guided on the frame pieces 25*25 to reciprocate in a fixed horizontal path; also, that the pulleys I4 and i5 are supported on the frame so that they revolve about stationary axes. While I have herein shown and described a preferred embodiment of my invention, it will be gunderstood that minor changes may be made without departing from the spirit or scope of the invention.

Having thus described my invention, what I desire toclaim as new is: a V V i l. In a spinning frame, the combination with a spindle rail and a builder motion for giving said.

rail its traversing movement, said motioninclud- 7 V eiov ing a slide arranged to be reciprocated by other elements of said motion, of a traverse bar mounted to reciprocate longitudinally of itself in a path lying'beside and parallelto the path of movement of said slide, connections between said bar 45 and said rail for transmitting the movement of .the bar to the rail and thereby giving said rail its traversing movement, and connections between said bar and said slide for transmitting the reciprocating movement of the latter to the former 5O -and giving said bar a reciprocating motion of substantially greater amplitude than that of the V slideIj '2. In a spinningframe, the combination with a spindle railand a builder motion for giving said i I 55 rail its traversing movement, said motionincluding a, slide arranged tobe reciprocated by other elements of said motion, of a traverse bar mounted to reciprocate longitudinally of itself in a path lying beside and parallel t6 the path or movement of said slide, connections between said bar and said rail for transmitting the movement .of a

the bar to the rail and thereby giving said rail its traversing movement, a pulley mounted on said:

slide, a chain running over said'pulley and connected at one end to said bar, and means for securing the opposite end of said chain in a fixed position, whereby the reciprocating movement of saidslide will be transmitted to said bar through said chain and pulley and will produce a reciproeating movement of the bar of. greater amplitude than that of said slide.

3. In a spinning frame, the combination with a spindle rail and a builder motion for giving. said rail itstraversing movement, said motion including a slide arranged to be reciprocated by other elements of said motion, of a traverse bar mounted to reciprocate longitudinally of itself in a path lying beside and parallel to the pathof movement of said-slide, connections. between said bar and said rail for transmitting the movement of the bar to the rail and thereby giving said rail its traversing movement, said connections including a pulley and a chain running over said pulley and 25 connected to said bar, a pulley mounted on' said slide, a chain running over the latter pulley and connected at one. end to said bar, and means for securing the opposite end of the latter chain in a fixed position, saidpulleys bearingon opposite sides of said barand being grooved for engagement with the bar toguide it. 1

4. In a spinning frame, the combination with a spindle rail and a builder motion forgiving said rail its traversing movement, said motion including a slidearranged to bereciprocated by other elements of said motion, of a traverse bar mounted to reciprocate longitudinally of itself in a path lying beside and parallelto the path of movement of said slide, connections between said bar and saidrail for transmitting the movement of the bar to the rail andthereby giving said rail its traversing movement, said bar being guided on said slide during its reciprocating movement relatively to the slide, and connections between said 7 bar and said slide for'transmitting the recipro eating movement of the latter-to the former and giving said bar a' reciprocating motion. of substantially greater amplitude than that of the slide. a

, 5. A machine according/to preceding claim 4 in which said bar runs in contact with said slide and said pulleys cooperate with said slide to guide the bar laterallyin addition 'to being constructed to guide the bar for movement in a horizontal plane.

- 'FREDERIC E. BANFIELD, JR. 

